I had the same problem with WKWebView, that I decided to use instead of UIWebView to avoid the pickers crash in iOS 8. There are two ways that I can think of:

Use NSURLConnection to make the request and then fill the WKWebView with it's response data. You can find an example here:
http://stackoverflow.com/a/10077796/4116680 (You only need connection:didReceiveData: and connectionDidFinishLoading: from the delegate if you don't use a self signed SSL certificate)